Headphone



FIG. 1A is a front perspective view of a headphone showing our new design;

FIG. 1B is a back perspective view thereof;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top elevational view thereof;

FIG. 6 is a bottom elevational view thereof; and,

FIG. 7 is a back elevation view thereof.

The broken lines showing recesses, vents, ports and a cable extending therefrom are for illustrative purpose only and form no part of the claimed design. 

The ornamental design for a headphone, as shown and described. 